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Nantes: Property Prices & Price per m² 2026
Secrets.RealEstate computes its Real Estate Score for any French address from official public data — the 36 insights in this report draw on 18.6 million notarial sale prices (DVF), state-mapped natural risks (Géorisques) and the national building database (BDNB).
Price trend for the surrounding area: median price per square metre (€/m²) by property type, with annual returns and volatility.
Your Investment Breakdown
Quick Calculator
Transfer Tax (5.8%)5,800
Notary (0.8%)800
Admin (~1.2%)1,200
Success Fee (6%)6,000
Finance (~1%)1,000
Total Investment€114,800
Financing Calculator
20%
€22,960
3.5%
1%8%
2.0%
1%5%
Loan Amount91,840
Monthly Payment€421
of which interest268
of which repayment153
Sold Properties Nearby
PROSELLER
Air Quality
Weather for Living
A
Climate Rating
182
Sunny Days
Year-Round Excellence
Winter
DEC - FEB
-7°21°
Mild & sunny
Spring
MAR - MAY
2°36°
Garden paradise
Summer
JUN - AUG
8°42°
Beach Season
Autumn
SEP - NOV
-3°22°
Perfect weather
Your Advantage Over Major Cities
VS LONDON
+17
More Sunny Days
VS PARIS
+13°C
Warmer Winters
VS MOSCOW
-30%
Less Heating Needed
VS DUBAI
0°C
Cooler Summers
Sun Exposure
Summer solstice - longest day
Date: 21.06.2026(Summer Solstice)
Hours of Sunlight
0
1
2
3
4
5
6
7
8
9
10
11
12+
Shadow Calculator
Time10:00
Date: 21.06.2026 | Time: 10:00
Accessibility and Local Amenities
PROSELLER
Living Environment
PROSELLER
Noise
PROSELLER
Bathing Water Quality
PROSELLER
Understanding Your Risk
PROSELLER
Short-term rental (Airbnb)
PROSELLER
Can you rent this property out to tourists? Each commune sets its own rules. The map shows the communes around the property; the box shows what applies here.
Building Intelligence
PROSELLER
Category
Grade
What This Means For You
Energy Performance
ACTUAL ENERGY USAGE
HIGH
Actual electricity consumption: 26,723 kWh/year Metered electricity: 26,723 kWh/year. Actual usage exceeds DPE prediction — real consumption is higher than the energy rating suggests.
Actual electricity consumption: 26,723 kWh/year — Metered electricity: 26,723 kWh/year. Actual usage exceeds DPE prediction — real consumption is...
Confidence: 80%
ENVELOPE DEFICIENCY
MEDIUM
2 thermal envelope deficiency(ies) detected Weak points: uninsulated walls (U=1.7), uninsulated floor (U=1.0). The thermal envelope determines 60-80% of the building's energy performance. Request insulation quotes from RGE-certified professionals for accurate pricing Insulation standards: RT2012 thresholds
33% of units rated E/F/G - energy-intensive co-ownership Out of 3 DPE ratings in the building: A=0, B=0, C=1, D=1, E=0, F=0, G=1. 33% of units are rated E, F, or G. Collective renovation likely - anticipate co-ownership capital calls. Multi-year renovation plan: varies by co-ownership Climate Law - Multi-Year Renovation Plan mandatory for co-ownerships > 15 years
33% of units rated E/F/G - energy-intensive co-ownership — Out of 3 DPE ratings in the building: A=0, B=0, C=1, D=1, E=0, F=0, G=1. 33% of units are...
Confidence: 90%
GHG FOOTPRINT
MEDIUM
Carbon footprint: GHG class D (39 kgCO2/m2/year) GHG class D emitting 39 kgCO2/m2/year. Energy class: D. Moderate emissions — improvement possible via insulation or heating system upgrade. RE2020 — increasingly strict carbon limits for buildings
Carbon footprint: GHG class D (39 kgCO2/m2/year) — GHG class D emitting 39 kgCO2/m2/year. Energy class: D. Moderate emissions — improvement possible...
Confidence: 90%
ENERGY BILL ESTIMATE
MEDIUM
Estimated energy bill: 194 EUR/month (natural gas) Based on DPE class D: 185 kWh/m2/year x 105 m2 = 19430 kWh/year. At 0.12 EUR/kWh (natural gas), estimated annual cost: 2332 EUR (194 EUR/month). Improving to class C could reduce the bill to approximately 189 EUR/month (saving 5 EUR/month, 64 EUR/year). Compare with actual utility bills from the seller. DPE estimates can differ from real consumption by 20-40% depending on occupant behavior and climate. DPE arrete du 31 mars 2021 — energy consumption expressed in final energy kWh/m2/year
Estimated energy bill: 194 EUR/month (natural gas) — Based on DPE class D: 185 kWh/m2/year x 105 m2 = 19430 kWh/year. At 0.12 EUR/kWh (natural gas),...
Confidence: 90%
DPE REGULATION
INFO
Average energy performance - no regulatory restriction DPE class D: no ban planned, but potential to increase value by improving to class C or B. No current restriction
Average energy performance - no regulatory restriction — DPE class D: no ban planned, but potential to increase value by improving to class C or B. —...
Confidence: 100%
GREEN ENERGY
INFO
No renewable energy installation No solar panels or renewable energy detected. Solar installation reduces energy bills and increases property value. Consult RGE-certified installer for solar assessment — eligible for MaPrimeRenov''
No renewable energy installation — No solar panels or renewable energy detected. Solar installation reduces energy bills and increases property value....
Confidence: 90%
Building Condition
INSULATION RENOVATION COST
HIGH
Wall insulation profile: murs en pierre de taille et moellons constitué d'un seul matériaux Stone walls without insulation — exterior insulation often impossible due to heritage constraints, interior insulation requires humidity management (200-350 EUR/m2). Stone buildings need specialized techniques. Standard insulation contractors may cause moisture damage. Request insulation assessment from RGE-certified professionals before budgeting renovation
Wall insulation profile: murs en pierre de taille et moellons constitué d'un seul matériaux — Stone walls without insulation — exterior insulation...
Confidence: 90%
RENOVATION PRIORITY
MEDIUM
Renovation priority: walls (48% of heat loss) Heat loss breakdown: walls 48%, floor 32%, windows 10%,. Priority: insulate walls first (48% of total losses).
Renovation priority: walls (48% of heat loss) — Heat loss breakdown: walls 48%, floor 32%, windows 10%,. Priority: insulate walls first (48% of total...
Confidence: 90%
RENOVATION SCOPE
MEDIUM
3 renovation area(s) identified Renovation scope: walls, floor, mandatory asbestos/lead diagnostics. 3 area(s) require professional assessment. Request quotes from RGE-certified professionals before making an offer. Request detailed quotes from RGE-certified professionals and factor renovation scope into price negotiation
Building materials: walls: INDETERMINE, roof: INDETERMINE Construction materials: walls: INDETERMINE, roof: INDETERMINE. Levels: 1, dwellings: 0. Material type affects insulation potential, maintenance costs, and renovation constraints.
Building materials: walls: INDETERMINE, roof: INDETERMINE — Construction materials: walls: INDETERMINE, roof: INDETERMINE. Levels: 1, dwellings: 0....
Confidence: 70%
WINDOW QUALITY
POSITIVE
Window quality: 0 weakness(es), 5 strength(s) Window assessment: Strengths: double glazing, bois frame (good thermal performance), low-emissivity coating (reduces heat radiation), insulating gas fill (argon ou krypton), shutters (abscence de fermeture pour la baie vitrée)
Risk of lead paint + asbestos (built 1945) Building from 1945 (era pre_1948). CREP mandatory (Lead Exposure Risk Assessment). DTA mandatory (Asbestos Technical Report). Demand these reports BEFORE signing the purchase agreement. Request certified diagnostics before purchase — mandatory seller obligation (CREP + DTA) Public Health Code L1334-5 (lead), Labour Code R4412-97 (asbestos)
Risk of lead paint + asbestos (built 1945) — Building from 1945 (era pre_1948). CREP mandatory (Lead Exposure Risk Assessment). DTA mandatory...
Confidence: 80%
RADON RISK
HIGH
High radon zone (category 3) — lung cancer risk Radon risk category 3. Radon is a radioactive gas and the 2nd cause of lung cancer. Install a radon detector, ensure mechanical ventilation. Measurement mandatory for public buildings in this zone. Install radon detector and consult ventilation professional if levels exceed 300 Bq/m3 Public Health Code R1333-28 — radon measurement mandatory in category 3 zones
High radon zone (category 3) — lung cancer risk — Radon risk category 3. Radon is a radioactive gas and the 2nd cause of lung cancer. Install a radon...
Confidence: 100%
RISK SUMMARY
HIGH
Risk assessment: HIGH — 18 insights derived Critical: 0, High: 4, Medium: 8 out of 18 total insights. Top issues: Risk of lead paint + asbestos (built 1945); High radon zone (category 3) — lung cancer risk; Actual electricity consumption: 26,723 kWh/year
Risk assessment: HIGH — 18 insights derived — Critical: 0, High: 4, Medium: 8 out of 18 total insights. Top issues: Risk of lead paint + asbestos...
Confidence: 60% — verify independently
Location & Infrastructure
INTERNET QUALITY
POSITIVE
Fiber optic (FTTH) available — 5 connection point(s) Building has 5 internet connection point(s) with technologies: Fiber (FTTH), Copper (ADSL/VDSL). Fiber optic is available, ensuring high-speed connectivity. This is a positive factor for property value and remote work.
Fiber optic (FTTH) available — 5 connection point(s) — Building has 5 internet connection point(s) with technologies: Fiber (FTTH), Copper...
Confidence: 70%
Regulatory & Comfort
REGULATORY CONSTRAINT
MEDIUM
Urban planning constraints: urban planning constraint This building is subject to: urban planning constraint. Any modification to facade, roof, or structure requires approval from the Architect of French Buildings (ABF). Additional delays of 3-6 months for permits. Materials and renovation techniques are imposed. ABF approval required — expect significant surcharges on facade and roof work Heritage Code L621-1 (monuments), L631-1 (heritage sites)
Urban planning constraints: urban planning constraint — This building is subject to: urban planning constraint. Any modification to facade, roof, or...
Confidence: 100%
COMFORT QUALITY
MEDIUM
Comfort: 2 strengths, 3 weaknesses Strengths: cross-ventilation (through apartment), multiple exposed facades (good natural light). Weaknesses: ground floor (easy access, more noise), no air conditioning, natural ventilation only Consider improvements to comfort weaknesses — they affect resale value
Declared usage 'Tertiaire' but 100% residential meters Building classified as 'Tertiaire' but has 12 residential meters vs 0 professional (100% residential). Verify classification consistency with actual usage.
Declared usage 'Tertiaire' but 100% residential meters — Building classified as 'Tertiaire' but has 12 residential meters vs 0 professional (100%...
Confidence: 80%
Important Warnings (User Feedback)
PROSELLER
17 Essential Tips for Buying Property
Go through these 17 tips carefully and review each point with the utmost precision. Even a single overlooked aspect can cause financial damage amounting to tens or even hundreds of thousands of euros.
Tip
1
Have sales agreement reviewed
Have the preliminary sales agreement (compromis de vente) legally reviewed by a notary or lawyer to be on the safe side.
No suspensive conditions included – buyer loses deposit if unable to proceed.
After signing the compromis de vente, French law grants a 10-day cooling-off period (délai de rétractation) – you can withdraw with full deposit refund, no justification needed.
The 10 days start the day after you receive the signed compromis by registered letter (lettre recommandée avec accusé de réception).
Withdrawal must be sent by registered letter – email or verbal notification does not count.
If day 10 falls on a weekend or public holiday, the deadline extends to the next business day.
2
Check land registry and mortgages
Check entries such as easements (servitudes), rights of way (droits de passage), or mortgages (hypothèques) at the Land Registry Office (Service de Publicité Foncière).
Old easement discovered – neighbor has permanent right of way through garden.
3
Finalize financing
Ensure that your property loan (prêt immobilier) is approved before signing the final deed (acte authentique).
Loan refused after preliminary contract – 10% deposit forfeited.